Coating apparatus



July 10, 1934. J n sc Y 1,965,631

COATING APPARATUS Fil ed Dec. 29. 1931 Patented July 10, 1934 UNITEDSTATES PATENT OFFICE COATING APPARATUS Application December 29, 1931,Serial No. 583,695

8 Claims.

invention relates to apparatus for coating such articles as parts ofshoes, examples of the work which the organization is well adapted beingfurnished by outsoles, insoles, the edges of uppers and the bottoms oflasted uppers, which are to receive an application of cement or othercoating substance :over certain areas.

The invention has as an object the provision of a conveniently arrangedapparatus, which may be operated with facility, which will insure aregular flow of the coating substance to the work and which mayunfailingly be kept in proper operating condition. For the attainment ofthis object, the apparatus illustrated as constituting one embodiment ofmy invention has a novel arrangement of receptacle for :a coatingsubstance and driven means for .efiecting delivery of the coatingsubstance therefrom and for applying said substance to the work,together with improved means for controlling the delivery of the coatingsubstance and for guarding against clogging of the applying means andthe means delivering thereto.

In the accompanying drawing,

Fig. 1 represents my improved apparatus in perspective, parts beingbroken away;

Fig. 2 is a side elevation of the receptacle and more closely associatedelements, parts being in section; and 1 Figs. 3 and 4 show applyingnozzles adapted for operation upon articles differing from those forwhich the nozzle of Fig. '1 is most advantageously employed.

Standing upon legs 10, and conveniently cast one piece, is a receptacle12 divided by a vertical partition 14 into two compartments l6 and 18,these respectively furnishing containers for such substances as cementand a solvent for said cement. The compartment 18 is preferably ofrelatively small capacity. A cover 20 may normally close the receptacle,it .being retained in place by a spring-catch 22. Lying transversely ofthe bottom of the receptacle is an elongated boss 24 having extendinghorizontally through it a cylindrical passage 26. Into this passage 26,

an opening 28 of considerable diameter leads from the compartment 16,while a relatively contracted opening 30 connects the compartment 18with the passage. Fitting in and extending through the passage 26 is asleeve 32 held against 1 .50 longitudinal displacement at the inner endby a nut 34 and at the opposite end by a handle 36 fast upon it. Thissleeve serves as a valve, having through it openings 38 and 40preferably oppositely placed and arranged to be respectively 1 5 broughtinto registration with the openings 28 and 30. This allows a flowintothe sleeve from either the compartment l-6 or the compartment 18. Astop-projection 42 is shown upon the handle .36, which may, by itscontact with the. bot-tom of the receptacle at opposite sides of thesleeve 32, determine the registration of either sleeve-opening with thecorresponding compartment-opening. The delivery-passage within thevalve-sleeve is continued by a flexible tube 44 having at its oppositeextremity a cement-applying device or nozzle A (Fig. 1) arranged formanipulation by the operator. To prevent .terference with the rotationof the valve-sleeve and with movement of the nozzle, connection to thetube at both ends may be through swiveljoin-ts 46. The nozzle A appearsas consisting of .a tube 48, which may be surrounded by a yieldablesleeve to furnish a better hold for the operator. At the delivery-end,this tube 48 may .becurved to one side, to more conveniently direct thedischarge, and is surrounded by a brush 52, by which the applied coatingis distributed over the work, this work consisting, for example, of.soles, the margins of which are to be coated. Fig.

3 shows another form B of applying nozzle. Here, the discharge isdirectly upon the worksurface, Without spreading effect. The nozzle B isuseful for the delivery of a comparatively thick coating of cement overthe bottoms of lasted shoes in preparation for the attachment of the.outsoles.- A flange 54, fixed upon the tube at a chosen distance fromthe delivery-opening, furnishes .a gage-surface, which, by contact withthe work, will locate correctly the applied band of adhesive. Anothernozzle (Fig. 4) 'may have a straight tube 56 with an outlet-slot 58 inits side at or near the otherwise closed end. This serves for applying acoating between connected parts, as shoe-uppers and their linings.

Situated within the valve-sleeve 32 beneath the openings 28 and 30, andextending therefrom through the tube 44 into the attached nozzle inproximity to the delivery-opening, is a feeding member for the cement,this member being preferablya flexible helix 60 of spring-wire having adiameter approaching that of the interior of the delivery-conduit. Inthe inner portion of the sleeve 32, the helix is connected to a flexiblecoupling member 62 secured at its opposite extremity to the shaft of anelectric motor 64, the speed of rotation of which may be governed by arheostat 66. The motor may be carried by a mounting 68 attached to therear of the receptacle, with its shaft axially alined with the sleeve.

While, obviously, any fluid substance may be;

delivered from either portion of the receptacle 12 exclusive of theother through the valve-sleeve 32 and connected tubing, I especiallycontemplate employing the container 16 for holding such acement aspyroxylin, with which work is to be coated, and the container 18 for asolvent for said cement, for example acetone, the latter being utilizedfor cleaning the cement-delivering connections. Consequently, in usingthe apparatus in this manner, the valve-sleeve, during the coatingoperations, will be positioned as illustrated tended band over thedesired area. The nozzle joined to the tube will be selected accordingto the operation to be performed. The amount of cement applied and thetime of delivery may be determined by the rotation of the motor, thecontact-brush of the rheostat conveniently being shifted by a treadle(not shown). When the use of the apparatus is to be discontinued, thehandle 36 is turned to close the opening 28 from the cement-container 16and bring the valve-opening 40 into registration with the opening 30 ofthe solvent-container. With the motor in operation, the solvent will beforced through the valve-sleeve, the flexible tube and the connectednozzle, clearing the cement from the interior of the entire conduit andfrom the helix. Consequently, while the apparatus is at rest, there willbe no cement to harden and clog the delivery-connections, and operationmay be resumed at once upon shifting the valve to the cement-deliveringposition. It will be seen that the arrangement of the motor, itsconnection to the helix and the location of the valve give a compactarrangement, allowing uninterrupted access to the interior of. thereceptacle and providing for a'connection of the flexible delivery-tubewhich facilitates manipulation by the operator of the delivery-nozzle.

Having described my invention, what I claim as new and desire to secureby Letters Patent of the United States is:

1. In a cementing apparatus, a receptacle having a partition dividing itinto two containers, the bottom of the receptacle having formed in it acylindrical delivery-conduit connected to both.

containers, a valve-sleeve rotatable in the conduit and provided withopenings communicating alternatively with said containers, a flexibletube terminating in an applying nozzle and connected at its inner end toone end of said sleeve to receive the discharge through the sleeve, aflexible helix extending through said sleeve into said tube, and drivingmeans for said helix connected thereto through the other end of thevalve sleeve.

2. In a cementing apparatus, an applying device, a cement-container, acontainer for a solvent, connections between both containers and theapplying device, a valve in the connections controlling the deliveryfrom both containers, and a feeding member movable in the valve.

3. In a cementing apparatus, an applying device, a cement-container, acontainer for a solvent, connections between both containers and theapplying device, a valve movable in the connections to connect eitherone or the other of the containers to the applying device, and a helixrotatable in the valve.

4. In a cementing apparatus, an applying device, a cement-container, acontainer for a solvent, connections between both containers and theapplying device, a valve movable in the connections to connect eitherone or the other of the containers to the applying device, and a movablefeeding member extending from the valve through the connections to theapplying device.

5. In a cementing apparatus, a receptacle having a partition dividing itinto two containers, 3 delivery-conduit connected to both containers, avalve-sleeve rotatable in the conduit and provided with an openingcommunicating with each container, an applying nozzle receiving the dis-.charge through the delivery-conduit, and a helix rotatable in thevalve-sleeve and delivery-conduit.

6. In a coating-applying apparatus, a. receptacle, a delivery conduitone side of which is connected to the receptacle, a sleeve valvecontrolling the passage from the receptacle to the conduit, a tubeconnected to receive coating material from one end of the conduit andprovided with an applying device, a helix within said tube and extendingat least partly within the sleeve valve, and means for driving saidhelix passing through the other end of said conduit.

'7. In a coating-applying apparatus, a recep-' tacle, a delivery conduitone side of which-is connected to said receptacle, a sleevevalve'coaxial with the conduit and controlling the passage from saidreceptacle, a flexible tube the outer end of which is provided with anapplying device and connected at its inner end to one end of said sleevevalve, a flexible helix extending through said sleeve valve and saidtube, and driving means for said helix passing through the, other end ofsaid sleeve valve.

8. In a cementing apparatus, a cement container, a container for asolvent, a conduit one side of which is connected to said containers, asleeve valve within and coaxial with said conduit controlling thepassage of cement and solvent to" JOHN E. DISCH.

